Clinical and vaccine immunology : CVI · 2009
Detection of Coccidioides antigenemia following dissociation of immune complexes.
Оценочное исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Durkin Michelle, Estok Lois, Hospenthal Duane, Crum-Cianflone Nancy, Swartzentruber Samantha, Hackett Emily, Wheat L Joseph
Аннотация
Having reported that pretreatment of serum samples with EDTA at 100 degrees C improved the sensitivity for the detection of Histoplasma antigenemia, we have evaluated this method for the detection of Coccidioides antigenemia. Urine and serum samples from patients with coccidioidomycosis were tested using the MVista Coccidioides enzyme immunoassay, and serum samples with and without EDTA-heat treatment were tested. Antigenemia was detected in 28.6% of patients whose samples were not EDTA-heat treated and in 73.1% of those whose samples were treated. Antigenuria was detected in 50% of patients. Specificity of 100% was obtained in healthy subjects, but cross-reactions were seen in 22.2% of patients with histoplasmosis or blastomycosis. EDTA-heat treatment improves the sensitivity for the detection of Coccidioides antigenemia.